package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Slf4j
@Service
@Component
public class OrderServiceImpl implements OrderService {


    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderDetailMapper orderDetailMapper;

    @Autowired
    private AddressBookMapper addressBookMapper;

    @Autowired
    private ShoppingCartMapper shoppingCartMapper;


    @Autowired
    private WebSocketServer webSocketServer;

    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //--1--地址为空
        AddressBook addressBook = addressBookMapper.selectById(ordersSubmitDTO.getAddressBookId());
        if(addressBook==null){
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        //--1.2--检查用户地址是否超过配送范围
        //checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());

        //--2--查购物车
        Long userId = BaseContext.getCurrentId(); //用户id
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(ShoppingCart.builder().userId(userId).build());
        if(shoppingCartList==null && shoppingCartList.size()==0){
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        //--3--封装订单/添加订单
        Orders orders=new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setPhone(addressBook.getPhone());
        orders.setAddress(addressBook.getDetail());
        orders.setConsignee(addressBook.getConsignee());
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setUserId(userId);
        orders.setStatus(Orders.PENDING_PAYMENT);   //PENDING_PAYMENT = 1;
        orders.setPayStatus(orders.UN_PAID);        //**支付状态 0未支付 1已支付 2退款 UN_PAID = 0;
        orders.setOrderTime(LocalDateTime.now());

        //--添加1条数据
        orderMapper.insert(orders);   //主键返回

        //--4--订单明细数据:  明细拷贝购物车数据，加入订单id
        List<OrderDetail> orderDetailList=shoppingCartList.stream().map(item->{
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(item,orderDetail);
            orderDetail.setOrderId(orders.getId());
            return orderDetail;
        }).collect(Collectors.toList());

        //--5.1--订单明细数据: 添加
        orderDetailMapper.insertBatch(orderDetailList);

        //--5.2--清空购物车
        shoppingCartMapper.deleteByUserId(userId);

        //--5.3--返回结果
        return OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime())
                .build();
    }



    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    @Override
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    @Override
    public void paySuccess(String outTradeNo) {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();

        // 根据订单号查询当前用户的订单
        Orders ordersDB = orderMapper.getByNumberAndUserId(outTradeNo, userId);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
    }

    //---模拟付款成功
    @Override
    public Orders AAAAAAAApaySuccess(OrdersPaymentDTO ordersPaymentDTO) {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        String orderNumber = ordersPaymentDTO.getOrderNumber();

        // 根据订单号查询当前用户的订单
        Orders ordersDB = orderMapper.getByNumberAndUserId(orderNumber, userId);

        //状态为1的订单才能付款
        if(ordersDB==null || !ordersDB.getStatus().equals(Orders.PAID)){
            throw new OrderBusinessException(MessageConstant.AAAAAA_ERROR);
        }
        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
        return ordersDB;
    }

    //--T1--历史订单查询   --与管理端查看订单
    @Override
    public PageResult getListOrderAndDetail(Map<String, String> map) {
        //--1--分页插件
        PageHelper.startPage(
                Integer.parseInt(map.get("page")),
                Integer.parseInt(map.get("pageSize")));

        //--2--条件查询订单
        map.put("userId",BaseContext.getCurrentId().toString());
        Page<Orders> ordersPage=orderMapper.getOrederByUserStatus(map);

        //--3--根据订单id封装订单明细
        List<OrderVO> orderVOList=ordersPage.getResult().stream().map(item->{
            OrderVO orderVO = new OrderVO();
            BeanUtils.copyProperties(item,orderVO);
            List<OrderDetail> listByOrderId = orderDetailMapper.getListByOrderId(item.getId());

            String orderDishes="";
            for (OrderDetail orderDetail : listByOrderId) {
                orderDishes+=orderDetail.getName()+"*"+orderDetail.getNumber()+";";
            }
            //封装orderDishes 与 orderDetailList
            orderVO.setOrderDishes(orderDishes);
            orderVO.setOrderDetailList(listByOrderId);
            return orderVO;
        }).collect(Collectors.toList());

        return new PageResult(ordersPage.getTotal(),orderVOList);
    }

    //--T2--查询订单详情
    @Override
    public OrderVO getOrderAndDetailById(Long id) {
        //--1--查订单
        Orders orders=orderMapper.getOneById(id);
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders,orderVO);
        //--2--查订单明细
        orderVO.setOrderDetailList(orderDetailMapper.getListByOrderId(orders.getId()));
        return orderVO;
    }

    //--T3--取消订单
    @Override
    public void cancelOrdersById(Long id) {
        //--1--订单在否？
        Orders ordersDB = orderMapper.getOneById(id);
        if(ordersDB==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //--2--订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if(ordersDB.getStatus()>2){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }


        Orders orders=new Orders();
        orders.setId(ordersDB.getId());

        //--3--订单处于待接单状态下取消，需要进行退款
        if (ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            //调用微信支付退款接口
//            weChatPayUtil.refund(
//                    ordersDB.getNumber(), //商户订单号
//                    ordersDB.getNumber(), //商户退款单号
//                    new BigDecimal(0.01),//退款金额，单位 元
//                    new BigDecimal(0.01));//原订单金额

            //支付状态修改为 退款
            orders.setPayStatus(Orders.REFUND);
        }

        //--4--更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    //--T4--再来一单
    @Override
    public void repetitionById(Long id) {

        //--1--订单是否存在
        List<OrderDetail> orderDetails=orderDetailMapper.getListByOrderId(id);
        if(orderDetails==null || orderDetails.size()< 1){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //--2--清空购物车
        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());

        //--3--添加购物车---补充两个字段
        for (OrderDetail orderDetail : orderDetails) {
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail,shoppingCart);
            shoppingCart.setUserId(BaseContext.getCurrentId());
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartMapper.insert(shoppingCart);
        }
    }

    //--T3--各个状态的订单数量统计
    @Override
    public OrderStatisticsVO getOrderStatistics() {
        //--1--订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        OrderStatisticsVO numVO=new OrderStatisticsVO();
        numVO.setToBeConfirmed(orderMapper.getOrderStatistics(Orders.TO_BE_CONFIRMED));    //待接单数量
        numVO.setConfirmed(orderMapper.getOrderStatistics(Orders.CONFIRMED));    //待派送数量
        numVO.setDeliveryInProgress(orderMapper.getOrderStatistics(Orders.DELIVERY_IN_PROGRESS));   //派送中数量
        return numVO;
    }

    //--T4--接单
    @Override
    public void sssconfirm(OrdersConfirmDTO ordersConfirmDTO) {
        orderMapper.update(
                Orders.builder()
                        .id(ordersConfirmDTO.getId())
                        .status(Orders.CONFIRMED)
                        .build());  //接单3
    }

    //--T5--拒单
    @Override
    public void sssrejection(OrdersRejectionDTO ordersRejectionDTO) {
        //--1-- 状态为2的才能拒单
        Orders ordersDB = orderMapper.getOneById(ordersRejectionDTO.getId());

        if (ordersDB==null || !ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //--2-- 退款支付状态
//        Integer payStatus = ordersDB.getPayStatus();
//        if (payStatus == Orders.PAID) {
//            //用户已支付，需要退款
//            String refund = weChatPayUtil.refund(
//                    ordersDB.getNumber(),
//                    ordersDB.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//            log.info("申请退款：{}", refund);
//        }

        //--3-- 拒单需要退款，根据\\订单id--新订单状态--拒单原因--取消时间
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    //--T6--取消订单
    @Override
    public void ssscancel(OrdersCancelDTO ordersCancelDTO) {
        //--1-- 查订单退款
        Orders ordersDB = orderMapper.getOneById(ordersCancelDTO.getId());

        //--2-- 退款支付状态
//        Integer payStatus = ordersDB.getPayStatus();
//        if (payStatus == 1) {
//            //用户已支付，需要退款
//            String refund = weChatPayUtil.refund(
//                    ordersDB.getNumber(),
//                    ordersDB.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//            log.info("申请退款：{}", refund);
//        }

        //--3-- 管理端取消订单需要退款，根据订单id更新订单状态、取消原因、取消时间
        Orders orders=new Orders();
        orders.setId(ordersCancelDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    //--T7--派送订单
    @Override
    public void sssdelivery(Long id) {
        //--1-- 校验订单是否存在，并且状态为3
        Orders ordersDB = orderMapper.getOneById(id);

        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //--2-- 派送
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orderMapper.update(orders);
    }

    //--T8--完成订单
    @Override
    public void ssscomplete(Long id) {
        //--1-- 校验订单是否存在，并且状态为4     订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        Orders ordersDB = orderMapper.getOneById(id);

        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //--2-- 完成:时间
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(orders);
    }




    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }



    //--T6--催单
    @Override
    public void reminderOrder(Long id) {
        //--1--订单是否存在
        Orders oneById = orderMapper.getOneById(id);
        if (oneById==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //----催单提醒
        Map map = new HashMap();
        map.put("type", 2);//消息类型，2表示--------催单提醒
        map.put("orderId", oneById.getId());
        map.put("content", "订单号：" + oneById.getNumber());

        //通过WebSocket实现来单提醒，向客户端浏览器推送消息
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }
}
